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Finding the Fourth Proportional to 323,750.55, 445,759.10 and 275,257.11

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Solution

The fourth proportional to 323,750.55, 445,759.10 and 275,257.11 is: 378,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,750.55 : 445,759.10 = 275,257.11 : x
  2. Step 2: Convert to fraction form
    323,750.55/445,759.10 = 275,257.11/x
  3. Step 3: Cross multiply
    323,750.55x = 445,759.10 × 275,257.11
  4. Step 4: Simplify right side
    323,750.55x = 122,698,360,245.92
  5. Step 5: Solve for x
    x = 122,698,360,245.92/323,750.55
  6. Step 6: Final answer
    x = 378,990.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.